Homework 10 Part 5

1. Mechanical and CHemical
2.Mechanical Digestion breaks down the food physically. Chemical Digestion breaks down the food into molecules chemically.
3.They lose a large part of the physical digestion and are not able to break down the food.
4. Mouth= 5,6, or 7
Stomach= About 2
Small Intestine= about 7
5. The mouth doesn't need much acid because it breaks down the food mechanically. The stomach however, relies on the acid to break down the food, thus needing a lower pH.